Eidos Montreal published a blogpost on their official website entitled Future Vision for Deus Ex. In it David Anfossi (head of studio) outlined where they're taking the Deus Ex franchise in the future. Most notably he discussed Deus Ex Universe - "an ongoing, expanding and connected game world built across a generation of core games" and he also confirmed a next-gen Deus Ex title that's in the works.
The Deus Ex Universe name recently popped up in reports and it seems it's not an actual game title, but the name of the framework Eidos Montreal are using for upcoming Deus Ex products. "Deus Ex: Universe will include PC and console games, but also additional Deus Ex games and experiences available in other media such as tablets, smartphones, books, graphic novels, etc."
Anfossi also teased Deus Ex Next-Gen with the concept art below: "I want to leave you with a piece of concept art from our next-gen Deus Ex game that shows trans-humanism segregation, which is a backdrop to our vision for the next Deus Ex. It represents a "ghetto-city' voluntarily built in order to separate the classes. The people in this segregated class have reshaped their environment, nostalgic for their ideal of Cyber Renaissance. This dark and dystopian vision sets the tone for things to come in Deus Ex."
We're excited. But until then we'll head back into Deus Ex: Human Revolution as the Director's Cut has now been confirmed for release on PC, PS3, Wii U, and Xbox 360 on October 25.